@article{JRAM_1992__430_153443,
     author = {V. M\"uller},
     title = {Local behaviour of the polynomial calculus of operators.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {61--68},
     publisher = {mathdoc},
     volume = {430},
     year = {1992},
     zbl = {0749.47002},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1992__430_153443/}
}